-ic -ol bbb bbc bbi bbk bbl bbo bbr bbs bcb bcc bci bck bcl bco bcr bcs bi- bib bic bii bik bil bio bir bis bkb bkc bkk bkl bko bkr bks blb blc bli blk bll blo blr bls bob boc boi bok bol boo bor bos brb bri brk brl bro brr brs bsb bsc bsi bsk bsl bso bsr bss c-- cbb cbc cbi cbk cbl cbo cbr cbs ccb ccc cci cck ccl cco ccr ccs ci- cib cic cii cik cil cio cir cis ckb ckc cki cko cks cl- clb clc cli clk cll clo clr cls co- cob coc coi cok col coo cor cos crb crc cri crk crl cro crr crs csb csc csi csk csl cso csr css ibb ibc ibi ibk ibl ibo ibr ibs icb icc ici ick icl ico icr ics iib iic iii iil iio iir iis ikb ikc iki ikk ikl iko ikr iks il- ilb ilc ili ilk ill ilo ilr ils io- iob ioc ioi iol ioo ior ios ir- irb irc iri irk irl iro irr irs is- isb isc isi isk isl iso isr iss kbb kbc kbi kbk kbl kbo kbr kbs kcb kcc kci kck kcl kcr kcs kib kic kii kik kil kio kir kis kkb kkc kki kkk kkl kkr kks kl- klb klc kli klo klr kls kob koc koi kok kol koo kor kos krc kri krk krl kro krr krs ksb ksc ksi ksk ksl kso ksr kss lbb lbc lbi lbk lbl lbo lbr lbs lcb lcc lci lck lcl lco lcr lcs lib lic lii lik lil lio lir lis lkb lkl lkr lks llb llc lli llk lll llo llr lls lob loc loi lok lol loo lor los lrb lrc lri lrk lro lrr lrs lsb lsc lsi lsk lsl lso lsr lss o-i ob- obb obc obi obk obl obo obr obs oc- ocb occ oci ock ocl oco ocr ocs oib oic oii oik oil oio oir ois okb okc oki okk okl oko okr oks olb olc oli olk oll olo ols oo- oob ooc ooi ook ool ooo oor oos or- orb orc ori ork orl oro orr ors os- osb osc osi osk osl oso osr oss rbb rbc rbi rbk rbl rbo rbr rbs rcb rcc rci rcl rco rcr rcs rib ric rii rik ril rio rir ris rkb rkc rkk rko rks rlc rli rll rlo rlr rls rob roc roi rok rol roo ror ros rrb rrc rri rrk rrl rrr rrs rsb rsc rsi rsk rsl rso rsr rss sbb sbc sbi sbk sbl sbo sbr sbs scb scc sci sck scl sco scr scs sib sic sii sik sil sio sir sis sk- skb skc ski skk skl sko skr sks slb slc sli slk sll slo slr sls sob soc soi sok sol soo sor sos sr- srb src sri srk srl sro srr srs ss- ssb ssc ssi ssk ssl sso ssr sss

bbbb bbbs bbci bblb bbls bbrc bcbc bcbs bccc bcci bccl bccs bcis bcor bcos bcrs bcsc bcsl bcss bibb bibi bibl bibo bibs bicc bici bick bico bics biis biko bili bilk bill bilo bils bio- bioc bioi biol bios birb biri birk birl biro birr birs bis- bisc bisk bisl biso biss blic blik blio blir blis blkb blls blob bloc blok bloo blrc blss bobb bobi bobo bobs bock boco bocs boi- boii boil bois boki boko boks boli bolk boll bolo bols boob booc book bool boor boos bor- bori bork boro borr bors bosc bosi bosk boso boss brcb bric brik bril brio bris brkb brls brob broc brok brol broo bror bros brrr brrs brsb brsr bsci bscs bsic bslc bsos bssc c-bo cbbc cbbs cbcc cbcl cbcr cbcs cbir cbkl cbko cbkr cblb cblc cbol cbrl cbsc cbsi ccbc cccb cccc ccci cccl cccs ccic ccii ccil ccir ccis cclc ccli ccls ccob ccoc ccrc ccri ccrl ccrs ccsi ccsl ccss cibc cibi cibo cicc cici cico cicr cics ciii ciis ciko cikr cili cilk cill cilo cils ciob cior cios cirb circ ciri cirk cirl ciro cirr cirs cis- cisc cisk cisl cisr ciss ckbc ckbi ckck ckcl ckco ckcs ckob ckoc ckoi ckoo ckor ckos ckrc cksb cksl ckso clib clic clii clik clio clir clis clob clok cloo clor clos clri clro clrs clsc cobb cobi cobo cobs cock coco coil coir cois cok- coko col- colb coli colk coll colo cols coob cook cool coos cor- corb corc cori cork corl coro corr cors cosc cosi cosl coso coss crbc crcc crcr crib cric crik cris crkc crkl crls crob croc crok crol croo cror crss cscb cscc csci cscl csco cscr cscs csib csik csio csir csis csks cslr csob csor csos csrc csrs cssr ibcs ibis ibos ibrc ibri ibro ibss icbc icbs iccb iccc icci iccl icco iccr iccs icis icks icll iclr icoc icor icos icrc icrr icrs icsb icsc icsi icsr icss iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ikki ikko ikoo ikri ilbc ilic ilio ilir ilis ilki ilks ill- illi illo ills iloc ilok iloo ilos iobi ioci ioii ioio ioko iolo iooi iooo ioos iori iors ioso ircc ircs iri- iric iril irio iris irki irks irlb irob iroc irrc irri irrs isbl iscc isci isco iscr iscs isic isil isis isko isls iso- isoc isok isol isor isos isri issc issi isso issr isss k-ci k-lo k-os kbbb kbbc kbbi kbbk kbbl kbbo kbbr kbbs kbcb kbci kbck kbcl kbco kbcr kbcs kbib kbic kbik kbil kbio kbis kbkb kbkk kbkl kbko kbkr kblb kbll kblo kblr kbls kbob kboc kboi kbok kboo kbos kbrb kbrc kbri kbrk kbrl kbro kbsb kbsi kbsk kbso kbsr kbss kcbc kcbi kcbk kcbl kcbr kcbs kccb kccc kcci kcck kccl kccr kcic kcii kcil kcir kcis kckc kckk kckl kcko kckr